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<div id="version" align=right><b>petsc-3.7.5 2017-01-01</b></div>
<div id="bugreport" align=right><a href="mailto:petsc-maint@mcs.anl.gov?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: petsc-3.7.5 v3.7.5 docs/manualpages/Mat/MatRegister.html "><small>Report Typos and Errors</small></a></div>
<A NAME="MatRegister"><H1>MatRegister</H1></A>
- Adds a new matrix type
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
PetscErrorCode MatRegister(const char sname[],PetscErrorCode (*function)(Mat))
</PRE>
Not Collective
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>name </B></TD><TD>- name of a new user-defined matrix type
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>routine_create </B></TD><TD>- routine to create method context
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
<A HREF="../Mat/MatRegister.html#MatRegister">MatRegister</A>() may be called multiple times to add several user-defined solvers.
<P>
<H3><FONT COLOR="#CC3333">Sample usage</FONT></H3>
<PRE>
<A HREF="../Mat/MatRegister.html#MatRegister">MatRegister</A>("my_mat",MyMatCreate);
</PRE>
<P>
Then, your solver can be chosen with the procedural interface via
<pre>
<A HREF="../Mat/MatSetType.html#MatSetType">MatSetType</A>(<A HREF="../Mat/Mat.html#Mat">Mat</A>,"my_mat")
</pre>
or at runtime via the option
<pre>
-mat_type my_mat
</pre>
<P>
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
<A HREF="../Mat/Mat.html#Mat">Mat</A>, register
<BR>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatRegisterAll.html#MatRegisterAll">MatRegisterAll</A>()
<BR>
<P>
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/interface/matreg.c.html#MatRegister">src/mat/interface/matreg.c</A>
<BR><A HREF="./index.html">Index of all Mat routines</A>
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